National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

34°F

1°C

Humidity 70%
Wind Speed SW 10 mph
Barometer 30.04 in (1017.5 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 12 Jan 4:56 pm EST
Extended Forecast for

South Dennis MA

  • Tonight

    Tonight: Mostly clear, with a low around 30. West wind 6 to 8 mph, with gusts as high as 21 mph.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 43. West wind 6 to 8 mph.

    High: 43 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34. Southwest wind 6 to 9 mph, with gusts as high as 28 mph.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 45. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 45 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain, mainly after 8pm. Cloudy, with a low around 35. Light south wind. Chance of precipitation is 50%.

    Low: 35 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain, mainly before noon. Mostly cloudy, with a high near 44. Southwest wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 44 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain between 8pm and 9pm, then a chance of snow after 9pm. Mostly cloudy, with a low around 22. West wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    Low: 22 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Friday

    Friday: A chance of snow before 9am. Mostly sunny, with a high near 33. West wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 33 °F

    Chance Snow
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 24. West wind around 7 mph.

    Low: 24 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 30. West wind 6 to 8 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 43. West wind 6 to 8 mph.
Tuesday Night
Mostly cloudy, with a low around 34. Southwest wind 6 to 9 mph, with gusts as high as 28 mph.
Wednesday
Mostly cloudy, with a high near 45. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.
Wednesday Night
A chance of rain, mainly after 8pm. Cloudy, with a low around 35. Light south wind. Chance of precipitation is 50%.
Thursday
A chance of rain, mainly before noon. Mostly cloudy, with a high near 44. Southwest wind 5 to 10 mph. Chance of precipitation is 40%.
Thursday Night
A chance of rain between 8pm and 9pm, then a chance of snow after 9pm. Mostly cloudy, with a low around 22. West wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Friday
A chance of snow before 9am. Mostly sunny, with a high near 33. West wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 24. West wind around 7 mph.
Saturday
Mostly sunny, with a high near 39. Southwest wind 5 to 9 mph.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 30. South wind around 6 mph. Chance of precipitation is 40%.
Sunday
A chance of rain and snow. Partly sunny, with a high near 39. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 22. West wind 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
M.L.King Day
Mostly sunny, with a high near 33. West wind 9 to 13 mph, with gusts as high as 23 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
5:03 pm EST Jan 12, 2026
Forecast Valid:
5pm EST Jan 12, 2026-6pm EST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation